Acquisition (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended	12 Months Ended
May 31, 2014	Jun. 30, 2014	Dec. 31, 2014
Business Acquisition [Line Items]
Goodwill acquired during the period			$ 9,715us-gaap_GoodwillAcquiredDuringPeriod
Zenara Pharma [Member]
Business Acquisition [Line Items]
Business acquisition (in hundredths)	49.00%
Business acquisition, purchase price negotiated	2,680
Identifiable net liabilities	(655)
Finite lived intangible assets acquired	4,900	4,900
Deferred tax liability related to the intangible asset	1,666
Goodwill acquired during the period	9,715		9,715
Acquisition related costs			$ 460

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of deferred tax liability attributable to taxable temporary differences due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.

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No definition available.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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